GB460822A - Improvements in or relating to annealing furnaces - Google Patents
Improvements in or relating to annealing furnacesInfo
- Publication number
- GB460822A GB460822A GB1057036A GB1057036A GB460822A GB 460822 A GB460822 A GB 460822A GB 1057036 A GB1057036 A GB 1057036A GB 1057036 A GB1057036 A GB 1057036A GB 460822 A GB460822 A GB 460822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- temperature
- annealing furnaces
- pipes
- annealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
In a continuous furnace for annealing cast-iron pipes, the pipes are preheated by primary burners to a temperature between 875 and 925 DEG C., maintained at this temperature by the combustion of separately introduced secondary supplies of gas and air for such period as to reduce the whole outer surface to a hardness, of 200 DEG Brinell or less, and are finally cooled, before emerging into the atmosphere, to a black heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1057036A GB460822A (en) | 1936-04-09 | 1936-04-09 | Improvements in or relating to annealing furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1057036A GB460822A (en) | 1936-04-09 | 1936-04-09 | Improvements in or relating to annealing furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB460822A true GB460822A (en) | 1937-02-04 |
Family
ID=9970274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1057036A Expired GB460822A (en) | 1936-04-09 | 1936-04-09 | Improvements in or relating to annealing furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB460822A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2392342A1 (en) * | 1977-05-24 | 1978-12-22 | Gautschi Electro Fours Sa | INDUSTRIAL FUEL OVEN FOR HEATING METAL ELEMENTS |
-
1936
- 1936-04-09 GB GB1057036A patent/GB460822A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2392342A1 (en) * | 1977-05-24 | 1978-12-22 | Gautschi Electro Fours Sa | INDUSTRIAL FUEL OVEN FOR HEATING METAL ELEMENTS |
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